| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they [modal v] have [verb] | 2829 |
|
| 2 | they [modal v] have [vb pp] | 2119 |
|
| 3 | [pron] [modal v] have seen | 492 |
|
| 4 | they [modal v] have see | 35 |
|
| 5 | they [modal v] [vb infin] seen | 35 |
|
| 6 | they [modal v] [verb] seen | 35 |
|
| 7 | they [modal v] have seen | 34 |
|
